Vaccines made now a days are safe .give scientific reason
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Answered by
0
Answer:
vaccine made nowadays are safe as they have been tested on many peoples by the scientist
Answered by
18
Answer:
Using this strategy, viruses are weakened so they reproduce very poorly once inside the body. The vaccines for measles, mumps, German measles (rubella), rotavirus, oral polio (not used in the U.S.), chickenpox (varicella), and influenza (intranasal version) vaccines are made this way
Explanation:
so vaccine are safe for us
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